PIN/PINLESS DEEP SENSING MOISTURE METER WITH SPHERICAL SENSOR AND REMOTE PROBE USER’S MANUAL MMD950 Please read this manual carefully and thoroughly before using this product.
TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 5 Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 What’s in the Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 – 7 Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Install Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION Thank you for purchasing General Tools & Instruments’ MMD950 Pin/Pinless Deep Sensing Moisture Meter with Spherical Sensor and Remote Probe. Please read this user’s manual carefully and thoroughly before using the meter. The MMD950 is designed for use in woodworking, water damage restoration, building construction and home renovation.
The distinction between absolute and relative readings is important to understand. The moisture level measurements made by the remote probe’s test pins are displayed in units of %WME (Wood Moisture Equivalent) simultaneously on a 0-99.9 count digital LCD and a 40-LED analog bar graph. These pin measurements are accurate within 3% of the reading plus 5 digits.
programmed to sound in different ways in response to different moisture levels or operations. The correlations make it easy to use sight and/or sound to pinpoint areas of peak or relative wetness. The beeper can be disabled without affecting measurements. • An auto power off function that can be triggered by three, five or 10 minutes of inactivity. • The meter can be set up to check its calibration automatically each time it is powered on.
PRODUCT OVERVIEW The figure shows all of the controls, indicators and physical features on the front, bottom, top, back and right side of the MMD950. Familiarize yourself with their positions and functions before moving on to the Setup Instructions. A K L B C D E % WME REL 90 70 60 50 40 30 F 85 75 65 55 40 30 20 12 J I 9 10 6 8 6 6 B .L .
A. B. C. D. E. F. G. H. I. J. K. L.
To change the default settings for the beeper, backlight or auto power function, follow the Advanced Setup Instructions beginning on p. 9. At a minimum, General recommends changing the default for the auto power off function to “enabled”. If you leave the auto power off function disabled, you run the risk of discharging the meter’s battery if you forget to power the meter off when you are finished using it.
Some measurement tips: 1. The spherical sensor’s accuracy is not affected by its angle relative to the target surface. Press the sphere against the material at the angle that makes the LCD easiest to read. 2. Never use force to drive the test pins into a hard surface. 3. Measurements of wood are skewed by two variables: ambient humidity and the density of the wood species.
The table below details the five function options available to you in Setup mode. Function Option No.
To change any setting, use the Mode button to cycle through the choices (0 or 1 for Options 0, 3 and 4; 0, 1, 2 or 3 for Options 1 and 2). When the setting you want appears as the right digit on the display, press the button to save it. Each time you save a setting, the display advances to the next Option. To leave a setting unchanged, press the button to advance to the next Option. Once a setting has been chosen for Option 4, the meter will automatically exit Setup mode and enter Measurement mode.
If either calibration check produces a non-zero reading for 10 seconds, and the meter is still under warranty, call General's Customer Service Department at 212-431-6100 to arrange to return the meter for service or replacement.
MAINTENANCE TIPS When the icon appears at the upper left of the LCD, it’s time to replace the 9V battery that powers the meter (although measurements will remain valid for several hours after the icon first appears). To replace the battery, follow the Setup Instructions on p. 7. When the tips of the remote probe’s 10mm test pins show signs of wear, replace them with a pair of 10mm or 15mm pins included in the case. Remove the battery when storing the meter for an extended period of time.
RETURN FOR REPAIR POLICY Every effort has been made to provide you with a reliable product of superior quality.
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GENERAL TOOLS & INSTRUMENTS 80 White Street New York, NY 10013-3567 PHONE (212) 431-6100 FAX (212) 431-6499 TOLL FREE (800) 697-8665 e-mail: sales@generaltools.com www.generaltools.com MMD950 User’s Manual Specifications subject to change without notice ©2011 GENERAL TOOLS & INSTRUMENTS NOTICE - WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS.
